Vulnerabilities (CVE)

Filtered by vendor Canonical Subscribe
Filtered by product Ubuntu Linux
Total 4190 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-3497 4 Canonical, Debian, Openbsd and 1 more 4 Ubuntu Linux, Debian Linux, Openssh and 1 more 2026-07-15 N/A 7.5 HIGH
Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.
CVE-2026-31431 11 Amazon, Arista, Canonical and 8 more 47 Amazon Linux, Cloudvision Agni, Cloudvision Portal and 44 more 2026-07-15 N/A 7.8 HIGH
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.
CVE-2016-9842 8 Apple, Canonical, Debian and 5 more 19 Iphone Os, Mac Os X, Tvos and 16 more 2026-07-14 6.8 MEDIUM 8.8 HIGH
The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.
CVE-2016-9841 9 Apple, Canonical, Debian and 6 more 39 Iphone Os, Mac Os X, Tvos and 36 more 2026-07-14 7.5 HIGH 9.8 CRITICAL
inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
CVE-2016-9840 9 Apple, Boost, Canonical and 6 more 20 Iphone Os, Mac Os X, Tvos and 17 more 2026-07-14 6.8 MEDIUM 8.8 HIGH
inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
CVE-2018-10902 4 Canonical, Debian, Linux and 1 more 6 Ubuntu Linux, Debian Linux, Linux Kernel and 3 more 2026-07-07 4.6 MEDIUM 7.8 HIGH
It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.
CVE-2025-26466 3 Canonical, Debian, Openbsd 3 Ubuntu Linux, Debian Linux, Openssh 2026-06-30 N/A 5.9 MEDIUM
A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.
CVE-2026-47337 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 3.3 LOW
Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.
CVE-2026-47336 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 3.3 LOW
Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.
CVE-2026-47335 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 5.5 MEDIUM
Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel panic.
CVE-2026-47334 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 5.5 MEDIUM
Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.
CVE-2026-47333 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 7.8 HIGH
Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.
CVE-2026-47332 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 5.5 MEDIUM
Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in information disclosure from adjacent slab objects.
CVE-2026-47331 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 7.8 HIGH
Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.
CVE-2026-47330 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 3.3 LOW
Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.
CVE-2026-47329 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 3.3 LOW
Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.
CVE-2026-47328 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 6.1 MEDIUM
Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.
CVE-2026-47327 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 3.3 LOW
Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.
CVE-2026-47326 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 5.5 MEDIUM
Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.
CVE-2026-3888 1 Canonical 1 Ubuntu Linux 2026-06-17 N/A 7.8 HIGH
Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles is configured to automatically clean up this directory. This issue affects Ubuntu 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 24.04 LTS.